George henry elwell



March 4 1924. R 1. 15,781

Y I G. H. ELWELL STUD AND EYELET FASTENING DEVICE Original F i1ed MW, 10 1922 7 Invefii'ow; Q69 :wggHEZWGZZ.

Reissued Mar. 4, 1924.

UNITED STATES PATENT OFFICE.

GEORGE HENRY ELWELL, 0F CLEVELAND, OHIO, ASSIGNOR TO CARR FASTEN'ER COH- PANY, OF CAMBRIDGE, MASSACHUSETTS, A CORPORATION OF MAINE- STUD AND EYELET FASTENING DEVICE.

Original No. 1,444,867, dated February 13, 1923, Serial No. 542,669, filed March 10, 1922. Application for reissue filed. July 17, 1923. Serial No. 652,176,

To all whom it may concern:

Be it known that I, GEORGE HENRY ELWELL, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Stud and Eyelet Fastening Devices, of which the following is a specification.

My invention relates to improvements in stud and eyelet fastening devices. 7

The objects of my invention are to provide a stud member adapted to utilize without rattle a grommet as the socket member; to provide a fastening means that is positive against direct withdrawal; and to provide a fastening means the members of which cannot 'be disengaged except by the tipping in one direction only of one member upon the other.

WVith this and other objects in view, as will more fully hereinafter appear, the invention consists in certain novel features of construction and arrangement of parts hereinafter described, illustrated in the accompanying drawing and particularly pointed out wherein patentable novelty is claimed for certain features of the device, it being understood that within the scope of what hereinafter thus is claimed various changes in form, proportion, size and minor details of the construction can be made without departing from the spirit or modifying any of the advantages of the invention.

The following is the description of an embodiment of my invention, reference being had to the accompanying drawing, in which Figure 1 is a side view of the stud member interlocked with a. grommet, the latter shown in cross-section; Figure 2 is a side view of the stud member and cross-sectional view of a grommet in disengaged position; Figures 3 and 4 are side and top views, respectively, of the main portion of the stud member; and Figure 5 shows a modified form of socket or grommet.

Referring more particularly to the drawing in which similar numbers refer to similar parts :the shank 1 of the stud member may be struck up from sheet metal or made out of the solid cylindrical rod. Attaching means 2 may be adapted,"as shOWn in Figure 1, for attachment to a solid, or, as shown in Figure 2, for attachment to fabric. The

free extremity of shank 1 is provided with recess 3 and the longitudinal exterior surface of shank 1 is provided with recess 4 communicating with recess 3, as shown in Figure 3. A seat 6 for coiled sprin 11 is provided in the base of recess 4 an bores 5 extending continuous relation transversely with and across recesses 3 and 4 are provided in shank 1 near the base of the stud member as shown in Figures 1, 2 and 3. The, pivotal member 7 is adapted to fit into said recesses 3 and 4. Hookshaped head 8 with which pivotal member 7 is provided rests within recess 3 but is adapted to extend beyond the cylindrical exterior surface of shank 1 as shown in Fi ure 2. Pivotal member 7 is provided at t e rear portion of head 8 with concave cam surface 9 and said member is pivoted to shank 1 by means of a pin extending through bores 5 and a corresponding bore in pivotal member 7 as shown in Figures 1 and 2. When head 8 is in its extended position laterally beyond the exterior surface of shank 1 the longitudinal edge 10 of pivotal member 7 lying at the opposite exterior surface of shank 1 is substantially flush with that exterior surface. Grommet 12 may be of any construction that provides a reasonabl thin circular border surrounding the stu passage, as shown in Figures 1 and 2.

In operation, pivotal member 7 is normally spring-pressed to the position shown in Figure 2. The grommet is placed over the top of the shank and pushed toward the base of the stud member. As the stud passage in the grommet engages concave cam surface 9, it having assed the rearward surface of hook-shape head 8, the pivotal member 7 is forced into alignment with shank 1 with head 8 somewhat extended beyond the exterior surface of shank 1. The grommet is prevented from being directly withdrawn from shank 1 by the rearward surface of head 8 serving as a blocking means and the spring-pressed pivotal member 7 bearing against the stud passage in the grommet at a place opposite to that engaged by head 8 holds the grommet rigidly thus preventing rattle, as shown in Figure 1. If a stud member is to be adapted for I the accommodation of more than one grommet at one time the shank 1 is lengthened for the purpose and the preceding grommet is pushed closely to the base of the stud member at or beyond the pivot point of pivotal member 7 permitting that member to be freely operated upon the engagement of the next following grommet. Therefore while a grommet is engaged on shank 1 close to the base of the stud member or at the pivot point it matters not that the pivotal member is permitted to assume its normal posit-ion; for upon an attempted withdrawal, excepting in the manner hereinafter explained, the rearward surface of hookshaped head 8 will immediately project laterally beyond the exterior surface of shank 1 and block such Withdrawal. To disengage the grommet from the stud member it is necessary to pull outwardly that portion of the ommet lying across the stud passage and directly opposite to the laterally projected head 8. This movement tips the grommet upon the stud member until it is free from the longitudinal edge 10 and concave cam surface 9 of'the pivotal member 7, as shown in Figure '2. Spring 11 is then permitted to pivotally operate pivotal member 7 to its normal position, as shown in Figure 2, and the rearward surface of head 8 being no longer a barrier'to the Withdrawal of the grommet the disengagement of the members is easily effected.

What I claim is 1. In a stud member the combination of a stud and eyelet fastening device, said stud member having an attaching means and provided with a two piece shank adapted for longitudinal alignment, one of said pieces being integral with said stud member and the other piece being pivotally mounted on said studmcmber and adapted to be presented at opposite exterior longitudinal surfaces of said shank; blocking means with which said pivotal piece is provided at its free extremity adapted to project laterally beyond the exterior surface of said shank only when said shank pieces are in alignment; and spring means normally adapted to maintain said pieces out of alignment; whereby said shank may be positively interlocked with an eyelet member whenthe eyelet is pressed onto said shank forcing said pieces'into alignment and said blocking means into blocking position, and whereby said eyelet may be removed from "said shank only by tipping said eyelet upon said stud member and ulling outwardly that portionof said eyeet located across the stud passage and directly op osite to that portion'of said eyelet en age bysaid blockmg means.

2. n a stud-member the combination of a stud and eyelet fastening device, said stud member fcompri'sing a two "sect-ion shank,

one 10f f saidv "sections 'isha'ving attaching base integral therewith and the exterior surface of said section being provided with longitudinal and transverse recesses, said other section pivotally mounted within said longitudinal recess being provided with a hook-shaped head at its free extremity and lying substantially within said transverse recess and thus adapted to extend laterally beyond the exterior surface of said shank, said pivotal section being thereby presented at both opposite exterior lateral surfaces of said stud member at the same time, the exterior of said head being provided with a concave cam surface; and spring means with which said pivotal section is provided and normally adapted to maintain said head Within said transverse recess; whereby said stud member is adapted for a positive connecting engagement with an eyelet when said eyelet is passed'over the shank operatively engaging said cam surface and forcing said pivotal section into alignment with the main section of said shank and said head to extend laterally beyond the exterior surface of said shank after the eyelet has passed the place of projection, said spring-pressed pivotal section bearing on the eyelet passage thereby holding said eyelet rigidly against rattle.

3. In a stud member the combination of a stud and eyelet fastening device, said stud member comprising a two section shank, one of said sections having an attaching base integral therewith and the other section pivotally mounted on said main section so that both sections are adapted to lie substantially in the same general plane; blocking means integral with said pivotal section and adapted to block the withdrawal of an eyelet engaged upon said shank; spring means with which said pivotal section is rovided normally adapted to maintain said pivotal section out of alignment with said main section and said blocking means withdrawn from its blocking position whereby said sections are adapted to be forced into alignment when an eyelet is passed onto both sections, said blocking means assuming its blocking position and both of said sections bearing against opposite portions of the eyelet passage thus holding the eyelet rigidly against rattle.

4. In a stud member the combination of a stud and eyelet fastening device, said stud member having an attaching means and provided with a two piece shank adapted for longitudinal alignment, one of said pieces being integral with said stud member and the other piece being pivotally mounted on said stud member and adapted to be presented simultaneously at diametrically opposite exterior lateral surfaces of said shank; blocking means with which said pivotal piece is provided at its free extr'emlty adapted fro-project laterally beyond fthe exterior surface'of said shank only when said shank pieces are in substantial alignment; and a concave cam under surface with which said extremity of said pivotal piece is provided; whereby said stud memer is adapted for a positive connecting en- ,gement with an eyelet when said eyelet is passed onto said shank member operatively engaging said cam surface and thereby forcin said pivotal shank piece in substantial a ignment with the fixed piece of said shank and moving said blocking means to blocking position; and whereby said eyelet may be removed from said shank member only by ti ping one member upon the other and pulling tipping movement releasing the under surface of said pivotal shank piece from the shank passage of the eyelet, and said pulling movement, being exerted against the rearwardly facing surface of said blockin means, operates forwardly said pivota shank piece until said blocking means remains no longer a barrier to the release of said members.

5. In a stud member the combination of a stud and eyelet fastening device, said stud member having an attaching means and provided with a two piece shank adapted for longitudinal alignment, one of said pieces being integral with said stud member and the other piece being movably mounted on said stud member and adapted to be rigidly and simultaneously presented at diametrically opposite exterior lateral surfaces of said shank; blocking means'integral with saidmovable piece and adapted to project laterally beyond the exterior surface of said shank; spring means with which said movable piece is provided and adapted to maintain said blocking means in a retracted position; and a concave cam surface with which the under-surface of said movable member is provided; whereby said stud member is adapted for a positive connecting engagement with an eyelet when said eyelet is passed onto said shank member operatively engaging said cam surface and thereby forcing said movable member against the tension of said spring means to its blocking position as a barrier to the withdrawal of the eyelet and whereby said eyelet may be removed from said shank member only by a tipping movement of one fastener member upon the other and pulling said members apart, said tipping movement releasing the under-surface of said movable member from within the eyelet passage and permitting said spring means to return said movable member to normal said blocking means no lon er a barrier to the withdrawal of said eye et.

6. A stud and eyelet fastener resisting disengagement by separating strain at one side while readily disengagable by separating strain at the opposite side and including a stud member presenting a body portion said members apart, saiddisengagement carrying latch means mounted for to and fro movement relative to said body part during engagement and disengagement of the stud and eyelet, said latch means presenting eyelet-engaging portions at opposite sides of said body portion, said eyeletengaging portions connected for conjoint movement into eyelet-holding position by the act of engaging said stud and eyelet.

7. A stud and eyelet fastener resisting disengagement by separating strain at one side while readily disengageable by separating strain at the opposite side and including a stud member presenting a body portion carrying latch means mounted for to and fro movement relative to said body part during engagement and disengagement of the stud and eyelet, said latch means presenting eyelet-engaging portions atopposite sides of said body portion, said eyeletengaging portions connected for conjoint movement into eyelet-holding position by the act of engaging said stud and eyelet and for conjoint movement into eyelet-releasing position by separating strain between stud and eyelet-opposite that side thereof toward which said latch means is moved by the act of engaging said stud and eyelet.

8. A stud and eyelet fastener resisting by separating strain at one side while readily disengageable by separating strain at the oposite side and including a stud member presenting a body portion carrying latch means mounted for to and fro movement relative to said body part during engagement and disengagement of the stud and eyelet, said latch means presenting eyelet-engaging portion at opposite sides of said body portion, said eyelet-engaging portions normally resiliently urged into eyelet-releasing position but connected for conjoint movement into eyelet-holding position by the act of engaging said stud and eyelet.

9. A stud and eyelet fastener of the type normally separable only by relative tipping movement between stud and eyelet in a single direction, said fastener including a stud having latch-presenting portions adapted to project at opposite sides of said stud, said latch reciprocable as a unit under the control of an inner surface of the studreceiving aperture in the eyelet during passage of said eyelet over said stud and during withdrawal of said eyelet from said stud. I

10. A stud and eyelet fastener of the type normally separable only by relative tipping movement between stud and eyelet in a single direction, said fastener including a stud having latch-presenting portions adapted to project at opposite sides of said stud, said latch reciprocable as a unit about pivot means located nearer the base of said stud than are said portions while under the control of an inner surface of the studreceiving aperture in the eyelet during passage of said eyelet over said stud and during withdrawal of said eyelet from said stud.

11. A stud for a three side lock fastener, said stud presenting a body part, a part movable into contracted and expanded relation to said body part and presenting at one side of the body part two cam surfaces, the first cam surface acted upon by the inner surface of the cooperating eyelet during engagement to promote contraction of said part relative to said body, the second cam surface permitting subsequent expansion of said part relative to said body as complete engagement of the eyelet with said stud is approached, said second cam surface acted upon by said inner surface to promote contraction of said part relative to said body during the initia portion of the disengaging movement, and said second surface permltting subsequent expansion as the disengaging movement is continued, and blocking means, at the opposite side of the stud body from said first-named side, opposing withdrawal of the cooperating eyelet from said stud body by outward strain thereon at said opposite side, while permitting such withdrawal of theeyelet by outward strain thereon at said first-named side.

12. A stud presenting a body and a latch reci rocably mounted therein, said latch normally resiliently pressed to a position generally within said body at one side, while presenting a lateral projection therefrom at the opposite side, said latch also presenting blocking means for rojection beyond the other side of said body.

13. A stud presenting a body and a latch mounted for to and fro movement therein, resilient means normally urging said latch in one direction, said latch when so urged by said spring normally presenting a lateral projection from said body at one side while ying generally within said body at the opposite side, sald latch also resenting blockmg means for projection eyond said opposite side of said body when said lateral projection is pressed toward said body by the inner surface of a cooperating eyelet surrounding said studi 14. A stud presenting a body and a latch mounted for to and fro movement therein, resilient means normally urging said latch in one direction, said latch when so urged by said spring normally presenting a lateral rojection from said body at one side while lying generally within said body at the opposlte side, said latch also presenting blocking means for projection beyond said opposlte side of said body when said lateral projection is pressed toward said body by the inner surface of, a cooperating eyelet surrounding said stud, said lateral projection resiliently pressing said surface thereby to preclude rattle between said stud and the eyelet. V

15. A stud presenting a body and a latch mounted for to and fro movement therein, resilient means normally urging said latch in one direction, said latch when so urged by said spring normally presenting a lateral projection from said body at one side while lying generally within said body at the o posite side, said latch also presenting blocE- ing means for projection beyond said opposite side of said body when said lateral projection is pressed toward said body by the inner surface of a cooperating eyelet surrounding said stud, said lateral projection presenting a cam surface producing a resolution of forces for moving said lateral projection toward said body during the entrance of the eyelet over said stud.

16. A stud presenting a body and a latch mounted for to and fro movement therein, resilient means normally urging said latch in one direction, said latch when so urged by said spring normally presenting a lateral projection from said body at one side while lying generally within said body at the opposite side, said latch also presenting blocking means for projection beyond said opposite side of said body when said lateral projection is pressed toward said body by the inner surface of a cooperating eyelet surrounding said stud, said lateral projection presenting a cam surface producing a resolution of forces for moving said lateral projection toward said body during the entrance of the eyelet over said stud while permitting a limited reverse movement of said lateral projection as the eyelet passes further onto said stud.

17. A stud having a body portion and a unitary latch movable by engagement therewith of a stud-engaging eyelet from an idle position in which said latch provides a considerable projection at one side of said bod into eyelet-engaging position wherein sald latch presents a lesser projection at said side and presents a blocking projection at the opposite side of said body, said blocking projection opposing separation of said stud and the cooperating eyelet by strain on that side thereof where said blocking projection is located. 7 p

In testimony whereof, I have signed my name to this specification.

GEORGE 'HENRY ELWELL. 

